Thérèse Dion – Wikipedia

Thérèse Tanguay-Dion, MSM (20 March 1927 – 17 January 2020), popularly known as Maman Dion (“Dion Mom” in French), was a Canadian television personality and the mother of singer Celine Dion. She was born on the Gaspé Peninsula, in Saint-Bernard-des-Lacs, Quebec, as was her husband, Adhémar-Charles Dion.

https://en.wikipedia.org/wiki/Th%C3%A9r%C3%A8se_Dion